# File lib/bundler/cli.rb, line 50
    def help(cli = nil)
      case cli
      when "gemfile" then command = "gemfile.5"
      when nil       then command = "bundle"
      else command = "bundle-#{cli}"
      end

      manpages = %w(
        bundle
        bundle-config
        bundle-exec
        bundle-gem
        bundle-install
        bundle-package
        bundle-update
        bundle-platform
        gemfile.5)

      if manpages.include?(command)
        root = File.expand_path("../man", __FILE__)

        if Bundler.which("man") && root !~ %r{^file:/.+!/META-INF/jruby.home/.+}
          Kernel.exec "man #{root}/#{command}"
        else
          puts File.read("#{root}/#{command}.txt")
        end
      elsif command_path = Bundler.which("bundler-#{cli}")
        Kernel.exec(command_path, "--help")
      else
        super
      end
    end